Our wall block is a 2.4a quick-charging power adapter that can be used anywhere with an outlet. Plug it in and charge your phone 2x faster than the wall block that comes with your iPhone. It works with any device that charges via USB-A, including: iPhone, iPod, iPad, GoPro, plus Samsung and Android devices. Our wall blocks are made to be used in the United States, Canada, Japan, Taiwan, and some parts of Latin America.